Timer Control: When powered on, the humidifier will run for 8 hours by default or choose from 3 preset times of 2H, 4H and 6H. The water consumption is about 15-25mL per hour. Auto shut off when the water is used up.

Warranty: This travel humidifier comes with a 30-day money-back guarantee, an 18-month warranty and a lifetime of friendly customer service!